New York data blogger Ben Wellington sits next to a fire hydrant Sunday in Brooklyn, N.Y. His investigation into the city's parking ticket data found that two Lower Manhattan hydrants on consecutive blocks in Manhattan generated $55,000 a year for the city — off of cars that appeared to be parked legally. RIchard Villa/OZY hide caption

itoggle caption RIchard Villa/OZY

Medical residents including Dr. Amy Ho (bottom right) helped with first aid at the Pitchfork Music Festival in Chicago. Courtesy Amy Ho hide caption

itoggle caption Courtesy Amy Ho

This Nov. 19 screenshot shows the cover photo of an unofficial Marine group on Facebook called Just the Tip, of the Spear. The group and those like it have been accused of promoting sexism and of acting as a forum for hate speech. Just the Tip, of the Spear - 21/Facebook hide caption

itoggle caption Just the Tip, of the Spear - 21/Facebook